22331923 has 2 divisors, whose sum is σ = 22331924. Its totient is φ = 22331922.

The previous prime is 22331899. The next prime is 22331929. The reversal of 22331923 is 32913322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22331923 - 2⁵ = 22331891 is a prime.

It is not a weakly prime, because it can be changed into another prime (22331929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11165961 + 11165962.

It is an arithmetic number, because the mean of its divisors is an integer number (11165962).

Almost surely, 2^22331923 is an apocalyptic number.

22331923 is a deficient number, since it is larger than the sum of its proper divisors (1).

22331923 is an equidigital number, since it uses as much as digits as its factorization.

22331923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 22331923 is about 4725.6664080318. Note that the first 3 decimals coincide. The cubic root of 22331923 is about 281.6060886885.

The spelling of 22331923 in words is "twenty-two million, three hundred thirty-one thousand, nine hundred twenty-three".